testo 6621 - Commissioning12
Commissioning
Assembling the instrument
Assembling
the
testo 6621-AA01/03
(wall):
Please note that assembling the instrument on poorly insulated exterior walls
will result in humidity and temperature readings that do not reflect the
average values in the room. It is recommended that the instrument be
installed on well insulated exterior or interior walls.
1 To open the housing (no connector may be inserted in the mini-DIN
socket): lift up the upper part of the housing (
) and remove (
).
2 Guide the cable from behind (
) or underneath (
, detach pre-punched
area of the housing) into the lower part of the housing.
3 Depending on the conditions in situ: Fasten lower part of housing at the
slots (
) using appropriate screws (not supplied).
4 After wiring (see chapter Wiring the instrument): Replace the upper part of
the housing.
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